(57e) Particle Sedimentation in Structured Liquids
AIChE Annual Meeting
2013
2013 AIChE Annual Meeting
Engineering Sciences and Fundamentals
In Honor of Gary Leal’s 70th Birthday (Invited Talks)
Monday, November 4, 2013 - 9:45am to 10:05am
Particle sedimentation in liquids is of both fundamental and practical importance. Most research on the subject has focused on the sedimentation in the absence of an external flow. However, there are many practical situations where particle sedimentation occurs under flow. In this study, sedimentation of a particle in various types of structured liquids is studied with and without flow. The structured liquids include entangled linear polymers, cross-linked polymers, and nanoparticle suspensions. The sedimentation rate of a single particle in these liquids is measured precisely using a CCD camera and an automatic particle tracking software while the particle is subjected to various flow conditions include steady and oscillatory shear as well as planar elongational flow. It is found that the static sedimentation rate depends on the low shear viscosity whereas the sedimentation rate under shear depends on the specific flow conditions and viscoelasticity of the sample. The interplay between the sedimentation, flow type, and viscoelasticity of the sample is discussed.
Topics
Checkout
This paper has an Extended Abstract file available; you must purchase the conference proceedings to access it.
Do you already own this?
Log In for instructions on accessing this content.
Pricing
Individuals
AIChE Pro Members | $150.00 |
AIChE Graduate Student Members | Free |
AIChE Undergraduate Student Members | Free |
AIChE Explorer Members | $225.00 |
Non-Members | $225.00 |